While the character equipped with this weapon is in the party but not on the field, their DMG increases by 2/2.5/3/3.5/4% every second up to a max of 20/25/30/35/40%. When the character is on the field for more than 4s, the afromentioned DMG bugg decreases by 4/5/6/7/8% per second until it reaches 0%.
In Game Description
An intricate, opulent longbow. It once belonged to a gentleman thief who was never caught.
How to Get Alley Hunter?
Obtainable from gacha during Windblume weapon event banner
Weapon Upgrade Materials
Here’s all material used to upgrade Alley Hunter: